Intermittent Fiber Separation Jig for Reinforcing Strands
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Solution Overview
Problem
Existing methods for producing yarns from reinforcing fiber strands face issues such as twist and positional variations, leading to increased process tension, lint generation, and fiber damage, making continuous separation unstable and costly.
Innovation Solution
A method involving a separating jig with a concave-convex shape, where the convex portion's height is set to one or more times the strand thickness and the curvature radius is between 0.01 mm to 50 mm, allowing for intermittent separation of fibers, which stabilizes the process and reduces width variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous separating of reinforcing fiber strands is attempted, then productivity is improved, but process tension increases and fibers are damaged
Solution Approach 1:
The separating jig is designed to intermittently contact the reinforcing fiber strands during rotation, creating periodic separation action rather than continuous contact. This allows the strands to be separated at specific intervals while avoiding continuous tension that would damage the fibers, resolving the contradiction between productivity and fiber integrity
Solution Approach 2:
The separating jig rotates to dynamically engage and disengage from the strands, creating a dynamic separation process. The rotational motion allows the separating portion to contact the strands intermittently, maintaining productivity while reducing continuous tension on the fibers
2Strength
If separating jig with large curvature radius is used, then fiber damage is reduced, but separating efficiency decreases
Solution Approach 1:
The separating portion has a localized convex shape with specific curvature radius (0.01-50 mm) concentrated at the contact point with the strands. This localized geometry provides gentle separation at the critical contact zone while maintaining overall separating efficiency, resolving the contradiction between fiber protection and separation performance
3Ease of manufacture
If twist and positional variations in strands are present, then manufacturing cost is reduced, but separation stability deteriorates
Solution Approach 1:
The rotating separating jig with controlled curvature radius provides a cushioning effect that absorbs the impact of twist and positional variations in the strands. The gradual contact and intermittent separation action prevents sudden tension spikes, maintaining separation stability despite variations in strand quality
Solution Approach 2:
The invention changes the separation process parameters by using intermittent contact with specific curvature radius and rotation speed, rather than continuous linear separation. This parameter change allows the system to handle strands with twist and positional variations while maintaining stable separation
Data Source
AI summary
A method for producing yarns separated from reinforcing fiber strands including a process of intermittently separating fibers of the reinforcing fiber strands.